Absolutely not. The major paper that came out in 2010, and we repeated this work, used historical commercial harvest and culling information on harbour seals. There's a lot of back-calculation of how many seals were around in the 1880s, around the time when the first nations fish harvesting collapsed completely because of smallpox. At that time, we calculated that there were about half as many seals in B.C. as there are today.
Also, as I mentioned, first nations people have been harvesting seals and sea lions intensively for thousands of years, so when people say this is a natural situation, it isn't natural with respect to anything over the last several millennia.