About "Snatch the Diamond" battle pass

So, isnt this battle pass too much hardcore? I bought improved for 3500 gold. I play solid, about 10-20 games a day. Im on stage 16 and one week is left. So I will need to grind over 50 games a day or buy 20 stages for 5000 gold. Too much time consuming/expensive on the end if you dont grind it hard. Or am I missing something?