Mega Beedrill discussion (mega, not stage)

I have been trying to contain my excitement about this bee for over a week now since we got the data but I can't hold it in anymore. I need to know if you honeys think that it is actually viable as a fully candied mega.

If you don't know what it is like: Beedrill takes 15 icons to evolve but it can be fed 12 candies so it evolves in a single 3-match. Matching mega Beedrill delays disruptions for one turn and you can select one area of 3*3 blocks to be removed.

So fully sped up you can theoretically delay disruptions from TURN ONE for an entire stage (the edge against mega Tyranitar that otherwise outclasses Beedrill in every aspect except for taking 3 more speedups). If disruptions trigger you can clear a pretty big hand-selected area.

The biggest downside seems to be that the ability sounds like it won't create many combos so for high HP stages it just won't sting it and be certainly outclassed by Ray+DD. Also poison is a bad offensive typing however if it works like mega Tyranitar, Steelix etc. this will actually only matter on the first match! (Actually I might have misunderstood that now that I think about it.) Either way Beedrill doesn't seem like a mega that would do a lot of damage anyway but only time or hackers can tell.

Anyway I am looking forward to your analysis about fex. what stages it would be good for and if it is worth feeding candies and general thoughts. Would you rather candy Beedrill or shiny Gyarados? Obviously a factor is if the upcoming megas are viable etc. but that can be hard to guess.

I definitely don't think that Beedrill is a must-candy like Rayquaza, Tyranitar and MMY but it's a novelty option if you already have those candied like shiny Gyarados.