Disagree, there are lot of "free" loans with no buy options. Clubs will play loanees if they are added value to their team. And Vitor is clearly better than Chimy Avila or Bakambu at this stage of his career. There are also other incentives we can use to guarantee our loanees will get enough minutes. For example % of wages we cover, lower/higher loan fee depending on how much he plays etc.
Including buy options is mostly a lose-lose scenario when you are the one who are loaning out the player. Either he plays good enough and you risk to lose him or he's not good enough and you get him back. Use a normal loan if you still believe in player long term or obligation to buy if you gave up on the player.
It takes 3 parties to complete a deal.
Betis don't do loans unless it is an absolute steal. They are paying Roque wage AFAIK, they need a win in the deal as an incentive to use him.
Free loans exist with bottom clubs (Las Palmas) whom you lian academy players to, or when you cover wages like Lenglet.
Roque didn't want to stay, we didn't want him to stay. No one wanted to pay his sum and buy him.
Current deal is good for us atm, and great for Roque.
Again, assuming it is true. I highly doubt we don't have buyback