Of course you don't, i suspect you are a lot younger than me, so read my post earlier in the thread and it might suggest why it is an issue to some fans.
Not every match going fan is fit and able to invade the pitch and celebrate, perhaps I was when I was much younger, but never considered it, i did not invade the pitch at Maine Road when we won the play off Semi, I was not on the pitch at Blackburn. Now I am older I do consider others around me, the work I do has helped me appreciate why exclusion from an event is unfair and has consequences.
I don't want to spoil fans enjoyment of special moments, but when we won the league with 93.20 we had a motto of #together We should celebrate together and that means don't leave people out, no fan is anymore important than any other, respect other fans and let them enjoy the day as well.