The worst team can win 4 in a row against the best in baseball, so yes!
Have faith in the binomial distribution, if not the lineup. But that's not where the smart money is.
Baseball, like all sports, is an imperfect test of skill. The reason we play four out of seven is to reduce "flukiness". It is interesting to consider the number of times that World Series have gone 4-0, 4-1, 4-2, 4-3, and compare the results to what we would expect if the teams were equally matched and the results just the results of chance. There have been 118 World Series since 1915, not counting the current match. The results are:
4-0 21 times
4-1 27 times
4-2 28 times
3-3 42 times
The expectation, if the games teams were equally matched and the outcome the result of chance would be closer to
4-0 2 times
4-1 13 times
4-2 39 times
3-3 65 times
The statistical preference for more lopsided margins than what would be expected by chance, and close series less frequently indicates that the better team wins more often than not. Of course, matches won by one game only weakly indicate superior skill.
Science!