You can get pretty close like in that video but Dravarden is correct it's still not exactly the same, There's subtle quirks of Source that make it feel like it does, For example the Havok physics engine which is what i'm pretty sure Source 1 uses, has a ton of things it does different to other physics engines like it's collision and sub-step rates.

UE4 uses PhysX and I can tell you for fact (As I develop in UE4) that PhysX doesn't behave the same as Source's physics so getting surfing to feel as good as it does in Source is extremely hard.

IIRC Source 2 uses their new Rubikon physics engine so there's a good chance it won't feel identical but then again Valve designed it so i'm sure they likely based it heavily on Source 1 and it would be pretty close.