It's boring because of the lack of features... I have seen many similar casinos that offer nothing but slots, even their instant games are from third-party providers. These sites usually have deposit bonuses, here it's 20% cash back & 100 spins, but other than that there are no other promotions. None of those casinos have become popular, I usually see one or two ads at the beginning (like now) and after that, these sites fall into oblivion.
That will probably happen with this casino as well. They simply have nothing new to offer, nothing interesting to attract players. Why would anyone replace a popular casino that has a much larger selection of games (original and third-party), sports betting, poker, lots of daily/monthly promotions, and probably most importantly a good reputation?
You are right. Lack of features can also cause such boring state because when there is nothing captivating or interesting about a casino, nobody would want to go there and that would cause the quick oblivion of the casino. No bonus and nothing to keep the traffic coming. No good promotional campaign and even the review thread does not say anything tangible about them. I wish the representative would sit up and inform the team to act accordingly in making sure all inputs and observations are properly looked into so as to enable them update their casino for a smooth ride in the casino industry. Anything outside this would mean them not ready for business.