Not really a big issue since by now people are not looking how good they are putting a good tagline on their business. But rather upon dealing online for sure many people look for something they could trust and its good if they can deliver and show up that they can satisfy their clients since for this they can get a best result since many people like a platform where there issues are easily solve by the management. Also Marketing is really important since this is somehow what can influence people to play or they look after to since if they didn't see anything like this running maybe they will just go there out of curiosity and leave then find more challenging casino to play again.
Doesnt matter if its catchy or not because people would be always looking out on the things that they do offer, and those lines or claims wont really be that something which people would really be making some issue for.If people would be finding out that they offering something which isnt looking nice then they would just simply stay on gambling site that they previously playing. Marketing does really play a great role on someones business because if they wont really be putting up that budget for that then we know that it do really lacks out on exposure which it is true that it might affect projects success just like on what lanatsa said above.
Speaks about on the design, it does really looks like Binance themed on first glance which template and fonts are really that almost identical and you would really be having that same essence
on the time you do surf and hover on the site.
Tag lines are supposed to be catchy. The purpose of tag lines is to catch the viewers attention in looking up, in this case it's the casino. If the viewers who visited the casino because of the taglines, means that the taglines is effective in getting people attention. Tag lines job isn't to show off the offerings of the casino, it also don't attract people. I believe tagline job is to get the do bold declaration and to put curiosity on the viewers mind. It's a way to market a casino along with the promotion. I'm sure marketing team would do something bold to make the potential viewers visit the casino. No matter how good the marketing team of a certain casino is, If it has a junky service, There would be no gambler that will stay on that casino long term.