Don't worry, Season will be 2 weeks old then the players will be getting called up for international duties, Nations league games... 2 in Sept , 2 in Oct and 2 in Nov... That's 3 weekends right there.
But yeah lets take away the income of the lower league sides that look forward to that glamour tie with a big club, with no replay the only option is the lower league club plays away,? Getting drawn at home, grinding out a draw then going back to the Prem side pretty much pays for their season. Going on about fixture congestion when we have pointless England games taking up 3 weekends!