Patrick Dangerfield's kick was initially ruled a goal by the goal umpire but the boundary umpire was adamant it had hit the post.
"You'd think the goal umpire would be in the correct position to make that decision." Sanderson said.
"Two goal umpires at each end I think is the general consensus across the industry, they can both look up and down the post when the ball is going through."
It was eventually sent to review which showed the ball did shave the post but Sanderson said the process took too long. Fremantle Coach Ross Lyon would also welcome change.
"Everything's pioneering; we'd still be the old VFL playing in suburban grounds if we didn't try things." Lyon said.
The wet weather played perfectly into Fremantle's hands and Sanderson believes his experienced players fumbled too much and lost their feet at important times.
"Our number one point before the game was to keep your feet." Sanderson revealed.
"Under pressure we fell over, went to ground too easy.
"Experienced players, not just our kids, still fell over and took the easy option and went to ground, which is unacceptable in wet weather."
Adelaide won the clearances, the contested possessions and the inside 50s but were unable to break through the Dockers' dour defence.
"We won most of the stats but didn't win on the scoreboard unfortunately." Sanderson lamented.
"It looked like they got goals that much easier, we had to fight for everything."
Ruckman Sam Jacobs' responded brilliantly after being subbed against North Melbourne last week but the Crows failed to capitalise.
"Jacobs was incredible in the ruck he had 50 hit-outs, gave us first look, it's a pity we couldn't get on top with the dominance he had in the ruck today." Sanderson said.
Hard nut Rory Sloane (30 possessions) gave credit to Fremantle's bulky midfielders.
"We knew their big bodies like Mundy and Barlow were always going try and get in front of us but sometimes it's tough to fight for position in front of those guys." Sloane said.
"We definitely got smacked in the midfield, it was their harder bodies and they definitely got inside us in that second quarter."
Adelaide is now at 5-5 but has lost four out of six games at home and it's not getting any easier with reigning premiers the Sydney Swabs next week.
Midfielder David Mackay was subbed off in the third quarter with a hip injury but is expected to play next week.
