Two points here:
1) The constant assertions by some folks that this is OK because there's 'no legal requirement' or 'regulatory mandate' for games to be designed any other way is increasingly coming across as shifty and evasive. There are many things aren't against the law or not in breach of any rules, but are still dubious and morally questionable. Simply saying, 'Well it's not against the law' as a defence is, frankly, very weak at best.
It's not against the law for me to go down the pub, impress some random lass with my awesome fruit machine playing skills, and shag the night away with her before returning in the morning and instructing Mrs Chopley to get my breakfast made whilst washing my knob in the sink. It still makes me a lowlife cheating bastard though.
2) As for the paytable point, as I note in my last video, the paytable for this game is, in essence, a complete irrelevance. For starters the whole game is predicated on reactions, cascades and multipliers, and the movement of the jam jars is specifically and inaccurately described as being 'random', as such, it is entirely reasonable for players to conclude that the sky is the limit if they get lucky enough, and certainly not constrained by the pay for the biggest cluster of the top paying symbols.
If something looks like it should be possible, then it should be possible. If it isn't, the rules should state as much, you've said yourself many times that you wouldn't put stacked wilds on a reel where it was impossible for stacked wilds to land.
And yes, when I'm playing, for example, Arctic Adventure, I know that every single possible combination for every single reel is achievable on every single spin.
If certain winning lines were 'blocked' in certain situations, then I'd sure as hell call foul.