Should I have the right to complaint?

If you're low on orbs, don't bother. Your odds of getting a 5* are super low off a single pull assuming you're working with a base pity rate, and obviously your odds of hitting a focus are lower than that.

Basically what bronzong said. It’s unfortunate, but you just need to deal with the fact it happened and move on. Start saving orbs and hopefully you can get enough to guarantee a focus unit in the future.

I can relate to your plight. Back in Farfetched Heroes I was sniping for Mia. Summoned 5 5*s, all off-focus! I was so mad. One was a dupe that I foddered away, and it was an off-color one! Only two of the others are still hanging around to this day, the other two were made into fodder after I got bored with them.

I would eventually get her when she appeared in a legendary banner, but with the worst IV spread imaginable! I'd love to get a version of her with better stats, but skipped Luna banner since I'd rather not risk flooding my barracks with Fallen Celicas that would be just turned into fodder (I have no interest in Fallen units).

If I were in your shoes, I'd probably just save up. They'll return in future legendary banners.

Here's the thing; saving up is far more beneficial in the long run because you'll be able to take advantage of more orbs to summon on. Let's say you've only got 5 orbs, and then the full circle is full of [Colour you want]...you essentially wasted 5 orbs, there, as well as a chance to take advantage of your percentage.

You got like 3 weeks. Try saving.

While most of them are top tier units,but yeah if you didn't get what you then of course you have the right to complain.

K, my word: if you're mad, you're human so be mad and don't wreck anyone else's life or property, and also don't listen to them when they say you have no right to be mad. Take ownership of your own feelings and opinions and let them do the same for theirs. Humans make mistakes and miss glaring considerations, but learning is mainly done when we have composure or half of composure so walk some of the steam off first.

The fact is that we all run bad sometimes and it's frustrating. That's part of this game. The same is true in life if you think about it - we sometimes work quite hard and the result can be very disappointing. I find it easier to see and accept when I know RNG is involved and I know it's beyond my control unless I'm going to try some kind of hack, which is...ethically very suspicious at the VERY least.

Recently I've been pondering whether I want to switch my philosophy entirely and try to build the best teams I can using whatever 5* I get, foddering some of them to the others. This would avoid some of the frustration over pulling because I take whatever I get and focus my sense of accomplishment on making the best out of it. I'm not yet convinced on this mentality, but I'm considering it over looking for my ideals. Maybe there's some kind of midway balance / hybrid.

That aside, when you've found calm, re-examine your summoning strategies, and if you believe that you're being smart and strategic with your orbs, the best you can do is start building a psychological strategy to deal with upsets such as what you're facing right now.

Nope if you ask me, but that's just me and my way of living, dont get mad for it, that aplies to myself when im mad as well :).
Seeker gave you great advise, try to focus on using what you have, not what you want. That kind of philosophy will help tremendeously if you can use it.
Also dancers are great in this game, even though you might not like them around they are best supportive units in feh that can ever be, best asset for arena defence team, for any pve content.