There is no "Rival are not allowed to get accredited" rule here. In fact there IS an accredited Rival casino, one who decided to meet the necessary criteria. They then changed software to RTG for their main offering, due to not feeling that Rival was properly suited I presume.
Rival casinos do get a bad press here, often by association. If they resent this, why go to such efforts to prove it to have been true all along as Tropica has now done.
The argument that someone "brought players to our door" over a 1777% bonus via some FREE advertising is laughable. The whole POINT of such a promotion is to "bring players to the door", as is the point of advertising. If they didn't want new customers, why bother spending money on such a promotion in the first place.
The last point to come out of this is even more damning, the ease with which Rival seem to mess around all the time with the games. We had Tradition and their 1:1 Blackjack, and now the revelation that a slot was "downgraded" from 99% to 95% to suit the casinos' desire to push out "stupid" promotions. This effectively scams those players who do not use bonuses, as they have had games changed for the worse that takes more money from them to subsidise the casinos' need to outdo the competition by offering other players larger and larger bonuses.
Ultimately, "management" when it comes to the white labels is these 4 secretive guys from Canada. If they step up and admit to being the ultimate owners and operators of the Rival estate, they would no longer be considered "white labels", and could argue their case for accreditation. They would just be a very large group like Casino Rewards. Their problem is that they want all the benefits of being accredited, but to accept none of the responsibilities, preferring instead to be able to blame "shell" companies set up to operate everything at arms length when things go wrong, even though it is clear that Rival, not local white label management, really call the shots.
It almost seems that Tropica "got told" right from the top to stop trying to position itself as a rising star among Rival white labels, which involved it sucking players away from the rest of the "clip joints" to their detriment. There were many who said that whilst Rival should largely be avoided, Tropica was OK because it was making such an effort. It was also learning from the experience, being told by expert players where it was leaving itself open to a "take down" by advantage players, and how to avoid it in future.
Although a casino needs to make a profit, it involves some high profile big winners as well as the many losers. Tropica are now more or less saying that EVERYONE is expected to lose at a steady rate to provide profit for the casino, and that no player can be allowed to get ahead in case they decide to quit at that point rather than play the money back.
If we can't even trust a rising star like Tropica, then we can NEVER trust ANY Rival white label to consistently meet a high standard, no matter how hard they appear to be working at it at any given moment.