Take a wee look at this video
And I suppose in some respects if you are struggling with your dog pulling you all over the place and not listening to you this can look pretty impressive.
A few questions to ask yourself there.
Whos benefit is a walk for? Would you like to be those dogs? What is being gained by them being offlead there?
Have a look at the dogs body language, see how their bodies are all curled in on themselves - this is not just the conformation of the dogs, they are keeping their heads and tails down, making themselves look small and unimportant so as to not draw attention to themselves. Notice how they are doing their best not to look at anything as they walk about, their entire focus is making sure they stick to their position.
Dogs need mental and physical exercise every day - walking like this without looking and sniffing is only physical exercise, they might as well be on a treadmill
Notice how they dont want to look at their owner at all and he dosent want to look at them either, I love walking WITH my dogs, smiling at each other, spotting what they have seen, seeing their happy faces when we take the turn to the park, watching the different shapes their waggy tails make when they sniff different smells (I can even tell by the wag if one of their friends has just gone into the park)
Could I walk my dogs offlead to the park? Yes I am sure I could - BUT - it is risking my dogs for the sake of my ego - betting their lives on my training - and all for the time it takes to stick a lead on.
If you are having a bad day and stressed that your dog is pulling a bit - look down at them - smile and be rewarded with that waggy tail - a little bit naughty for me is 100 times better than a depressed robot