Rovers’ trait of going behind in League One games continued with Lewin Nyatanga giving Barnsley a fifth-minute lead.
But Doncaster, who had come from behind successfully in recent away games against Crewe, Rochdale and Bradford City, showed their tenacity and spirit again, forcing former keeper Ross Turnbull into a string of saves before Theo Robinson levelled on 52 minutes.
It extended Rovers’ encouraging sequence to one defeat in seven matches, but Dickov was not wholly satisfied and felt the Oakwell draw represented an opportunity lost.
Dickov said: “It is another point gained, coming from behind.
“It is sod’s law that Ross makes three or four unbelievable saves to keep them in it. But it keeps the little run going.
“But we feel as if it should have been three points and we are little bit disappointed.
“I had a bit of a go at them after the game because I felt after the first 15-minute period of the second half where we played really well and got on top, I thought we were sloppy. People took too many touches.”