Yep. The biggest factor in the drop in scoring is the increase in goalie size, growth in the size of their equipment and the increased skill level/techniques of goalies. Increasing the net size is the easiest and smartest solution. The amount of net area to shoot at has decreased incredibly from the high scoring 80s.
I think the game could be more exciting, and more goals doesn't necessarily mean it's a more exciting game. Dealing with the goal tending issue is something that certainly needs to be done. However, I don't think it solves the problems of the modern NHL. I've gone to enough games with 7-9 goals scored that I've yawned beginning to end. You have to change the dynamic of the game, like the NFL did, so that Offense > Defense when it comes to winning.
From the widening end you need to get the nets wide enough to make all out defense untenable, but at the same time if you make the nets so wide that you see players hitting 30+% shooting then you're just getting cross the blue line and shoot tactics. There's a reason you don't watch the first 3 quarters in the NBA, the scoring is so common it doesn't matter anymore. I have no problem with the grinding in zone offenses. I love watching a team get the puck down low and cycle and probe, get shots, good puck retrieval, and so on. Make the nets too big and there's no incentive to play that style or to create quality scoring chances. Just shoot, the goalie can't butterfly out and every other point shot goes in. I'm really not interested in seeing more point shots that the goalie never sees, they're not overly impressive and I don't consider those goals exciting hockey. Sometimes goals are just goals.
It also doesn't address any other parts of game play, in my opinion the NHL's problems happen before the shot is taken and not after. For me at least, exciting hockey comes from fast break hockey, pin point passing, manly man physical play, and great puck work. Making the nets bigger doesn't open up the neutral zone for fast break hockey, it doesn't fix 9 ft wingspans on players that clog passing lanes, it doesn't fix the obstruction, it doesn't fix the 'when I feel like it' reffing.
step 1: consistent reffing, either make it harder to take a penalty and call it every time, or make it easier to take a penalty and call it every time, just for the love of god call penalties when they happen
step 2: make it legal to play the puck with your hand when it's off the ice, give a short window that a player can catch a puck and move it with his hand, make play making a 3 dimensional part of the game
step 3: make the crease larger and no one is allowed in it without the puck, push the blockers away from the net, eliminate the layers of people a shot has to get through and create more free for all pucks
step 4: add an extra 4-8 sq ft to the net mouth, don't make nets taller, just wider, big goalies should have an advantage, but big immobile ones shouldn't