Wasps team mate Joe Launchbury was also left out of the Lions squad but Young said that while the 26-year-old second rower might get another opportunity, Haskell's chance had probably gone.
"It's a hard pill to swallow, if you’ve got 70-odd caps for his country and not made a Lions tour," Young told British media.
"Joe, if he doesn't get on the place, has potentially got another crack, he's young enough. Hask probably hasn't.
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"That will eat away at him deep down."
Wasps are five points clear at the top of the English Premiership but centre Elliot Daly was the only player from the side to make it into Warren Gatland's 41-man squad for the New Zealand tour that starts on June 3.
"For a team sitting at the top, I'm surprised how few representative players we've got," Dai added.
"If you look at some of the Premiership teams below us, most of them have got more players on the Lions and England tours."
(Reporting by Aditi Prakash in Bengaluru; Editing by Peter Rutherford)
