Have the Hellboy, Beasts Of Burden, and Concrete strips in DHP undermined the integrity of their comics?
The Hellboy, Beasts Of Burden And Concrete strips did not undermine the integrity of DHP, they were all self contained tales which utilised characters from the Dark Horse line. They required no previous knowledge of the saurce material, (I've not read either Beasts Of Burden or Concrete outside of DHP) nor did they lead into a series outside of DHP.
Murky World & Marked Man may well spin into their own series (Limited or otherwise.) If there is the demand for either of them. But what was presented in DHP was complete, it had a begining, a middle and (most important) an end.
Both Resident Alien & The Massive were set ups for series that would not be concluded within the pages of DHP. It's a marketing tool, an advertising gimmick, a (not free) promo. Sell story to readers in a anthology title £££, re-sell story in a collected edition '0' (and hopefully pick up more readers who had not read anthology.) £££, continue story in own title #1 £££. Re-sell anthology or issue '0' when readers of issue #1 realise that the story has begun elsewhere £££.
Or am I being cynical?
I'm not being critical of Resident Alien as a strip, as I've said before, I enjoyed what I read of it.
Stew.