Why can’t Outrights be combined in combo bets / multi-bets?

Outright selections are currently excluded from combination bets entirely, so an Outright cannot be combined with another Outright regardless of tournament or sport, and it cannot be combined with match betting market selections either. The reason we restrict it fully rather than per tournament is that the scope of related events for Outrights is very broad. A tournament winner Outright is contingent on every match its participants play, including other events within the same sport where the same teams appear. Enforcing this strictly would mean blocking Outright combinations against any event involving any participating team and re-evaluating on every roster change or withdrawal. Most combination options would end up restricted anyway, and the remaining ones could change unpredictably, which is difficult to explain to bettors. Restricting Outrights from multi-bets completely was the cleaner option.