Harris suffered a back injury in his match against Ramos. I remember you posted a bet on Harris (vs De Minaur) so I made a post explaining the risks of backing Harris. Harris was bagelled in the first set and then he retired. It's been only 4 days since that and do not forget this is a small tournament.
It seems your only reason to back Harris was that Taberner lost against Zapata. Taberner knew he was going to play as a LL (as it has already been said here). So, why he should deny to his friend a spot into the main draw?
Taberner is a pure claycourter and what he did in Barcelona was impressive. He bagelled Korda and then he was close to beat FAA. I watched a little bit of that and I saw him more solid than ever.
When you place a bet you have to consider all the possible factors. You can't place a bet only because of 1 match (especially when it's a qualification match and the player who has lost enters as a LL...). Don't feel offended, I'm just telling you this cause this match had plenty of factors to think that Harris was not going to play or just not win it in case he decided to play. The most fair thing he could do was to let his spot to a LL and take the half of the money. Anyway, I have not seen the match so don't take my last words too seriously.