it may be advantageous for Russia. thats true.
but it still doesnt imply that slovakia is therefore politically pro-russian.
they might care about pro-slovak advantages it brings. or they might think that sanction dont work as intendet. or they might think that sanction paradoxically cause too many problems in EU. or that it is not the right approach to resolve the conflict.
Or not be as willing (as the British state is for example) to sacrifice the entire male population of Ukraine to fight a war for them.
That makes you "pro Russian" apparently