I agree from the perspective that of all the potential cheese combos in the beta, 6 Strike cruiser Mk2s can deal a truly biblical amount of crew damage in almost no time at all.
If you're a Necron or Tyranid fleet: sorry, you're going to lose your flagship immediately. It's not fun to play against.
And it's not like you can outrun them either when they're burning combustion.
I'd be surprised and disappointed if they don't increase the cost of it in the final retail release.
Decided to try it for myself, and did an AI battle against Orks, gave them 30% more fleet points than normal, and yeah Strike cruiser Mk2 boarding spam cleaned them up with cruisers to spare.