Seip powered home a header in the 31st minute before David Vaughan added a second in the 64th minute as the hosts rose to fifth in the Coca-Cola Championship.
Sturrock brushed Seip's effort aside, saying: "I don't really care who scored. Seip has put himself in the shop window and I suppose that is good for him because I want him to move on."
But Seip hit back, saying: "I am delighted to have scored. I was training on my own at Plymouth. I will never play for that man again and he will never pick me.
"Yes, we have had a big fallout but Blackpool have given me a chance and I want to take it."
The Seasiders remain unbeaten at home with four wins and two draws and manager Ian Holloway said: "I wish we could play here every week. I was very pleased with the performance and pleased for Marcel.
"We looked a good team and I could bring an international off the bench in Neil Eardley and no one has been able to say that about a Blackpool side for a long time".
Plymouth boss Sturrock added: "I am not using it as a total excuse but we were 10 and a half hours on a bus on Friday. It really showed the journey took its toll and we let down our following support. In the first half we were second to everything but improved slightly in the second."