Perhaps a more apt analogy is "did dropping the atomic bombs on Hiroshima and Nagasaki irreversible damage the environment" No, they did not.
Oil is a natural product of the earth. Not some toxic poison.
1 Volcano does much more temporary environmental damage then all the oil spills in history combined.
The thing the Enviormantalist wackos ignore is that the Environment is a self regulating mechanism that absorbs, dissipates and removes the temporary impact of these sorts of events over time.There is no such thing as "irreversible environmental damage".