I'm very wary about modernfitba stats - their methodology is often flawed, sometimes completely.
As regards Doidge - I'm not sure I understand the relevance or the construction of the percentage, but this is what I do know:
In the first 10 league games he scored 0 goals, and created 1 goal (an assist)
In the next 5 league games from the St Johnstone game, he scored 7 goals, and no assists.
In the most recent 5 league games he's scored 0 goals, and created 0 assists.
What is also interesting is that in the 5 games he scored in, he took 18 shots which is a hefty proportion of his 30 shots all season. In the last 5 games, he's had 3 games with no shots at all, and 2 shots in total.
I think the numbers are reflecting a high shots on target percentage for Doidge - 60% of 30 (18 of 30)
Others for reference - Mallan 15 of 34, Allan 9 of 19, Kamberi 12 of 27, Horgan 5 of 12
Winding back though - he's scored 7 of our 28 league goals this season - so - essentially I think you can take those numbers quoted with a pinch of salt.
Edit: Martin Boyle has scored 5, and created 1 assist in 6 starts - really, who is "most involved in their scoring chances"