The 1-1 draw leaves Liverpool still outside the top four as defending Premier League title holders.
A disappointed Aldridge wrote for the Liverpool Echo: "Anybody who wants to know how far Liverpool have fallen this season needs only watch what happened against Tottenham Hotspur on Sunday.
"Almost 12 months ago, the two teams met at Anfield and we absolutely battered them to seal a Premier League title triumph that was as emphatic as it was deserved.
"But at the weekend Arne Slot’s side couldn’t even beat what was in effect a Tottenham reserve team given all the injuries and suspensions the visitors had.
"Since that win against Spurs last April, Liverpool have lost 15 games in all competitions. That’s not very good at all.
"A fair amount has been made about the booing at full-time on Sunday. I’ve been supporting Liverpool for more than 50 years and I still hate to hear the players being jeered at full-time.
"But you can understand it. It has been a culmination of what the home fans have had to put up with at Anfield for much of the season. There hasn’t been a lot of enjoyment for anyone involved."