Unless you have knowledge of the various fiqhs - you cannot make such claims. You can say that you prefer your fiqh and consider it correct and that the difference of opinion is acceptable at the very most (bid’a Idafiya) … I have other references that suggest otherwise for the Sunnah of a traveller, if you note I didn’t negate the Sunnahs, I said they are acceptable to be prayed … we may differ on whether they remain Sunnah or not … difference of scholarly opinion is a blessing in Islam, because instead of clear cut “I’m right you are wrong” - it enables us to say “yours is acceptable, but I feel mine is better” …
After checking again, I note the Hanafis are stricter about Sunnahs in Qasr than the other madhabs … JazakAllahuKhair brother vroom
