People who assume like this only know a small part of football, winning the UCL trophy is the dream of every team because the level is more prestigious than other competitions, but they also do not ignore the Domestic League because one of the ways to achieve the Treble Winner must win the UCL trophy, the Domestic League and the Domestic Cup involving clubs from various divisions.
Kompany will have to work harder if he wants to win the Champions League trophy, but in terms of domestic leagues, Bayern Munich have no problem dominating the Bundesliga.
Winning UEFA Champion League is high dreaming for all club participants and any players still not winning yet such as Harry Kane or Arsenal as the big four Premier League teams still not have UCL trophy in their cupboard. I believe all teams will prioritize for performing well in Champion League match beside have bigger composition received from UEFA until how competitive with Champion League match. For next season can't predictable yet who will be the winner although recent performance of PSG still quite well but the journey for winning UCL still take longer time.
Bayern Munich dominance at domestic league this season quite easily but get difficulty when playing at Champion League, Vincent Kompany still difficult how to bring his team get higher round in Champion League after eliminating by Inter Milan at quarter final round. Would next season Bayern Munich can lead until final round or still the same with this season acievement qualified until quarter final round.