I still wouldn't do it.

4k for what is essentially 1.5 rainbows is meh

today's daily deal is Cattleya Swimsuit and a gold skillbloom for 2000 Nutaku gold, too bad Cattleya isnt very useful

if she was 5 bucks, then I'll do it

I haven't got Cattleya or her variants - I can't be an oppai man if I don't have Cattleya lol

While I have had reservations about deals in the past.

You can get 5 birds with a single refill. 5 of each if you refill 4 times. You can literally get 5x the birds for less gold than what they want.
Plus, the rate at which we are getting blooms means there is NO reason for you to buy this. You will always have an abundance of birds available to you in the whale shop.

It doesn't help that you can't do anything with a single bird. Even if you have a bloomable character, you need to get another bird elsewhere.

I'll buy da birds so I can focus on just buying the whale accessories

what I really need are petals since they don't have 'em in shops or maps

They really sell bloom mats.
Not long they will sell bloom set for each girl type / nation.