Sean Dyche slammed the officials for allowing Everton's goal to stand against his Burnley side on Saturday over a suspected push by Allan on Ashley Westwood in the build-up.
After Robbie Brady's side had given the Clarets a third-minute lead, Dominic Calvert-Lewin scored from Richarlison's cross in the final seconds of the first-half, with neither side able to steal an advantage after half-time and the points were shared.
In the build-up to the Calvert-Lewin goal, Westwood appeared to be felled by Allan, who then played in Richarlison to get his assist. On-pitch referee Anthony Taylor opted not to call a foul and while VAR official Mike Dean spotted the incident in Stockley Park, he also chose to let the challenge go unpunished.
Burnley manager Dyche was 'aggrieved' that a foul was not called and called for more consistency in officiating.
Dyche told BT Sport after the game at Turf Moor: 'I don't know what's going on in the game anymore. I speak about it all the time, no-one's really bothered apart from me it seems.
'I don't know what's a foul, what isn't a foul anymore. Westy gets an arm in the back (from Allan), he gets a soft touch on his foot, he goes down and it's not a foul.
'We all know that every week they get given. My argument isn't about whether it should or shouldn't, it's just that in this league now when you make contact with someone in the middle of the pitch like that it virtually gets given every single time.
'Today it doesn't, they counter and they score a goal, I'm certainly by that moment in time.'
Burnley had several chances within the first-half to extend their one-goal advantage after Brady struck from the edge of the penalty area with a fine strike.
Chris Wood had a shot saved by Jordan Pickford while Josh Brownhill dragged a shot wide from inside the penalty area.
In the second-half, New Zealand striker Wood had a header saved by England number one Pickford after Dwight McNeil's corner found him inside the six-yard box.
Dyche praised his side's display, especially following a damning 5-0 loss to Manchester City last weekend, but rued the missed chances to extend their lead.
The Burnley manager added: 'It was an important reaction from last week, even against a top side (like Manchester City). The way we went about it, the way we took the game on against a really good side. I know they've had a tough spell but they're a good side without a doubt.
'The basic requirement about how we work is that - the will and desire to work as a team, as a unit, form a shape and be effective with the ball. I thought we found a good balance - we asked questions and we got in behind.
'The last moment of quality has sometimes lacked this season. The two centre-forwards had chances to have a touch and finish when the ball's been played between their centre-halves, we didn't always take them on.
'But I'm pretty pleased overall, it ends up being a game of two goalkeepers.'